Neoproterozoic Era

This is the third and final era of the Proterozoic Eon. It is followed by the Phanerozoic Eon.

This era marked many changes in life, such as coral reefs in oceans, and early arthropods and the Ediacaran biota.

This era also had major glaciation in the Cryogenian Period. The earliest fossils with hard shells appeared in this era.

Temperatures also became more suitable, except during the Cryogenian Period.